High resilient Bearing HrB-Hs 3000

High Resilient Bearing
HRB-HS 3000
Material Colour closed cellular polyetherurethane
dark-green
Standard dimensions on stock
Thickness: 12.5 mm with HRB-HS 3000 – 12
25.0 mm with HRB-HS 3000 – 25
Dimensions: max 1.5 m wide, up to 1.2 m long
Other dimensions (also thickness), as well as stamped on request.
Area of application
Compression load Deflection
depending on form factor, values apply
to form factor 3
Static range of use
up to 3.0 N/mm2
approx. 12 %
up to 4.5 N/mm2
approx. 16 %
(static loads)
Load peaks
(short term, infrequent loads)
Material properties
Test methods
Comment
Mechanical loss factor
0.06
DIN 53513*
depending on frequency, specific load and amplitude
Static shear modulus
2.4 N/mm2
DIN ISO 1827*
at preload of 3 N/mm2
Dynamic shear modulus
2.8 N/mm
DIN ISO 1827*
at preload of 3 N/mm2, 10 Hz
0.6
Getzner Werkstoffe
dry, reference value
0.7
Getzner Werkstoffe
dry, reference value
DIN EN ISO 1856
25 %, 23 °C, 70 h, 30 min. after unloading
Coefficient of friction (steel)
Coefficient of friction (concrete)
Compression set
Operating temperature
Flammability
Thermal conductivity
* Tests according to respective standards
2
<5%
-30 bis 50 °C
short term higher temperatures possible
B2
DIN 4102
EN ISO 11925-2
0.16 W/(mK)
DIN EN 12667
normal flammable
passed
All information and data is based on our current knowledge. The data can be applied for calculations and
as guidelines, are subject to typical manufacturing tolerances and are not guaranteed. We reserve the right
to amend the data.
Further information can be found in VDI Guideline 2062 (Association of German Engineers).
Further characteristic values on request.
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1
Specific load [N/mm2]
Load deflection curve
4
3.5
12.5 mm
Figure 1: Quasistatic load deflection
curve measured with a loading rate
of 0.2 N/mm2/s
37.5 mm
3
25 mm
50 mm
2.5
2
1.5
Testing between abrasive paper
(grain size K120) affixed to flat steelplates; recording of the 3rd loading;
testing at room temperature
1
Form factor 3
0.5
0
0
1
2
4
3
7
8
6
Deflection [mm]
5
Modulus of elasticity [N/mm2]
Modulus of elasticity
70
Figure 2: Load dependency of the
static and dynamic modulus of
elasticity
60
30 Hz
50
10 Hz
40
Quasistatic
30
20
10
0
0
Quasistatic modulus of elasticity as a
tangent modulus taken from the load
deflection curve; dynamic modulus
of elasticity due to sinusoidal excitation with an amplitude of 0.1 mm
Test according to DIN 53513
0.5
1
1.5
2
2.5
4
3
3.5
Specific load [N/mm2]
Specific load [N/mm2]
Natural frequency
4
3.5
50 mm
3
37.5 mm
2.5
25 mm
2
12.5 mm
1.5
Parameter: Thickness of
elastomeric bearing
1
0.5
0
5
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2
Figure 3: Natural frequency of a
single-degree-of-freedom system
(SDOF system) consisting of a
fixed mass and an elastic bearing
HRB-HS 3000 based on a stiff
subgrade;
Form factor 3
10
15
20
30
25
Natural frequency [Hz]
Relative deflection
[% of thickness with unstressed sample]
Static creep behaviour
18 %
Figure 4: Deformation under
consistent loading
Full static loading
16 %
14 %
Form factor 3
12 %
10 %
8%
Half static loading
6%
4%
2%
0%
1 Month
0 1
2
3
4
5
6
7 10
1 Year
100
10 Years
If HRB-HS 3000 is loaded within the
specified operating range, the performance (natural frequency) under
constant ambient conditions remain
the same during the period of
loading.
1,000
10,000
Period of loading [days]
Change of dynamic modulus
of elasticity [%]
Dependency on amplitude
50 %
Figure 5: Typical dependency of the
dynamic modulus of elasticity on the
amplitude of vibration
40 %
30 %
20 %
HRB-HS 3000 materials exhibit a
negligible dependency of amplitude.
10 %
Reference value 0.1 mm, 10 Hz
0%
-10 %
-20 %
-30 %
-40 %
-50 %
0.001
0.01
0.1
0.2
0.3
0.4
0.5
0.6
Amplitude [mm]
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3
Influence of the form factor
In the figures below one can find correction varying form factors.
Figure 7: Deflection*
10
Variation of deflection [%]
Specific load [N/mm2]
Figure 6: Static load range
3
100 %
80 %
60 %
40 %
20 %
0%
0.1
1
3
Figure 8: Dynamic modulus of elasticity at 10 Hz*
30 %
20 %
10 %
0%
-10 %
-20 %
0.1
1
10
Form factor
3
10
Form factor
15 %
10 %
5%
0%
-5 %
-10 %
-15 %
-30 %
-20 %
-40 %
-25 %
-50 %
-30 %
0.1
1
3
10
Form factor
0.1
1
* Reference value; specific load 3.0 N/mm2, form factor 3
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Austria — Bürs
4
3
Figure 9: Natural frequency*
Variation of natural frequency [%]
Variaton of the dynamic modulus of elasticity [%]
-20 %
10
Form factor
germany — Berlin — Munich
Jordan — Amman
Japan — Tokyo
INDIA — Pune
CHINA — Beijing
DB HRB-HS 3000 en © Copyright by Getzner Werkstoffe GmbH l 11-2010
We reserve the right to amend the data.
1